John h



.(No Model.)

J. E. SHAW.

l MINGING MACHINE. N0. 3371'131'.E Patented Mar. 9, 1886.

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N PHERS. Pnmaiilhwmphw. wnahinglnn. D. C,

AiNTTa STATES PATENT/TTT JOHN H. SHAW, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO SARGENT &

CO., OF SAME PLACE.

lVllNClNG-MACHINE.

(No model.)

y T a/ZZ whom, it may concern.-

Be it known that I, JOHN H. SHAW, of New Haven, vin the county of New Haven and `State of Connecticut, have invented a new Improvement in Mincing-lllachines; and l do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same,

1o and which said drawings constitute part of this specification, and'represent, in

Figure l, a side View; Fig. 2, an end view, a portion of the case removed to show the perforated plate as supported within the case on line ac x, Fig. 3; Fig. 3, a longitudinal central section showing a side view of half the feedscrew; Fig. 4, a transverse section inside the cut-ters, looking toward the perforated plate on line y y, Fig. 3; Fig. 5, a transverse section on line zz of Fig. 3; Figs. 6 and 7, views of modifications in the construction of the adjusting devices.

This invention relates to an improvement in that class of machines for minclug meat and like materials in which a perforated plate yis arranged at one end of a cylindrical 'case in a plane at right angles to the axis of the cylinder, with a cutter arranged to rotate in substantially close contact with one surface of 3o the said perforated plate, and a screw or other suitable follower arranged to force the material within the casetllrough the perforaticus in the said plate, the cutter working through the mass and cutting off at each perforation.

The object of this invention is principally -to make a ready and easy adjustment of the cutter or cutters with relation to the perforated plate; and it consists in the construction, as hereinafter described, and more particularly recited in the claims.

The case is of cylindrical shape and made in two parts, A B, A being the lower part, and supported upon suitable legs, C, or otherwise; the part B hinged to thepart A, as at a, the division being longitudinal and in a horizoutal plane. At one end the part B is constructed with a hopper, D, through which the material to be cut or minced is introduced into the case. At the opposite end of the case a 5o perforated plate, E, is arranged. This plate is set into the case and iuterlooked therewith byprojectious b entering corresponding cavities in the parts of the case, as seen in Figs.

2 and 3, and so that the plateis rigidly supported in all directions as if it were an iutegral part of the case. The plate is perforated f with numerous holes, in size corresponding to the work to be accomplished.

Within the case the follower F is arranged. This follower is in the form of a screw sup- '6o ported in a bearing, G, at the end ot' the case f opposite the perforated plate, and so as to be revolved by means of a crank, H, or other- Wise. The periphery of the spiral rib forming the screw should run substantiallyin contact with the inner surface ofthe case. At its end next the perforated plate oueor more cutters, e, are arranged, extending radially from the axis of the screw, but in a plane parallel with the inner surface of the plate, and rigidly 7o and inadjustably fixed to the screw and so as to revolve with it.

The cutters may be made as an integral part of the screw; but I prefer to constructv them so as to se-t over a non-cylindrical projection on the end of the screw, against a shoulder thereon, and so as to be secured by a suitable screw,f, or other device, which will rigidly hold the cutters in connection with the screw.

I construct the internal surface of the case with spiral ribs g running toward theperfoi-ated plate, the inclination of. thread being by preference about forty-hre degr es, or considerably greater than the inclination of the Spiral rib of the screw or follower, and arrange several of these ribs (here represented as three) to the single pitch of the follower or feed-screw, the internal diameter of the ribs in the case corresponding substantially to the V9o external diameter of the spiral rib of the screw-follower.

The material to be cut or minced is introduced` through the hopper D in the usual manner, and under the revolution of the screw Fsuch material is fed or forced toward the if perforated plate E, and through the perfora`- j tions in the plate. The cutter or cutters e pass f through the mass of material at the innersurface of the plate, and therefore cut the porroo tions which have passed into the perforations shoulder, as seen in Fig. G; or the bearing from the mass within the case-in the well maybe internally serew-tllreaded, and the known manner. rlhe resistance of the mass nut adapted to surround the shaft and screw 7o to movement through the cause and perforainto the bearing against a shoulder on the 5 tions tends toforce thesciefvbr follower rearscrew, as seen in Fig. 7; but the bushing ward from the plate, and such resistance is interlocked with the fixed bearing, adaptmetby the bearing at the opposite'e-nd` of the` ed to `takethe forcejofpthe nut, prevents the; case.' V possibility of the nut being turned under 75 In order that the cutters may work in 'suchU friction between it andthe shaft or feed-screw,

to relation to the plate as to properly sever the as might be the case in either of the modificaportions which enter the perforations from the tions Fig. 6 or 7. mass at the rear, it is necessary that the cutv The two parts of the case are provided with ters should be nicely adjusted with relation-asuitablc locking device to secure them to- 8o to the surface of the plate. To conveniently. gether, las seen in Fig. -1, or otherwise, it be- [5 do this I arrange a bushing, L, within the ing necessary that the parts shall be firmly bearing G, the internal rdian'ieter of which held together when the machine is in operacorresponds to the shaft )I of the screw. The tion: said bushing extends through the bearing, It will be understood from the foregoing'lSS and so as to abut against the shoulder at the that I anraware that a mincing-uiachine conge junction of the shaft and screw, as seen in sisting ofa cylindrical case with a perforated Fig. 3. rlhis bushing is movable longitudi plate at one end anda spiral revolving feed ually in the bearing, but is interlocked with within the case, with cutters arranged to ro- 1 the bearing, so as to prevent rotation, by tate upon theinside of the perforated plate, 9o constructing the bushing with lugs l1, which so that the material in the case is forced enter correspondingnotches, t', in the bearing, toward and through the perforations by the as seen in Fig. 5. The bearing Gis formed revolving follower in the case, and the mateon the lower part ofthe case, and as a permarial cut by the cutters running adjacent to `nent and integral part thereof, and projects the inner face of the perforated plate,isa con- 95 outside the end ofthe ease. It is cylindrical struction old and well known, and that vI 3o in shape and screwthreaded upon its outer therefore in this application make no claim,

surface. Onto the outer surface ofthe bearbroadly, to such construction and combinaing a corresponding screw-threaded nut, N, is tion of devices.

` applied, adapted to be screwed thereon toward I claim--v roo or from the end of the case, according'to the 1. The combination of the cylindrical case,

direction in which the nut is turned. The nut longitudinally divided, the perforated plate has an internal flange, Z, at its outer end, to E, rigidly supported in one end ot' the case, bear against the end of thebushing L, as seen the case provided with a hopper nearthe opg `in Fig. 3. and so that as thenutis screwed onto posite rnd, a feed-screw `arranged longitudi- '105 the bearing it will force the followerinward1 nallywithin the said case and carryiug one;

40 against the end ot' the feedscrew or follower or more radial cutters at its end next said Rand correspondingly move thesaid follower. perforated plate, the said cutters adapted t0 .with its cutters, toward the perforated plate revolve in a plane j iarallelwith and adjacent at the opposite end of the cylinder; or, uuto the innersuri'ace ot' said perforated plate, x io screwing the nut N, the bushing L will be the shaft of the said feed-screw extendingY permitted to fall back, and with it the feed through a bearing at the endvof the case opscrew Fand cutters, away from the inner surposite the perforated plate, and there proface of the plate E. Therefore by turning the vided with meansforitsrotation. with a screwl `said nut N in one direction'ror the other the nut at said bearing around the'shat't, between :x15i

cutters may be readily adjusted into the proper the end of the case and the said means for the 5o relation to the inner surface ofthe perforated rotation of the said shaft, adapted to adjustplate. This adjustment being at the end of ably support said feed-screw and cutters the case opposite the perforated plate enables againstlougitudinal movement from said per- 7 vthe adjustment to be made while the machine forated plate, substantially as described. lo

is in operation-a specially great advantage v2. The combination ofthe cylindrical case,

where the machines are run by power, as it longitudinally divided, thev V1; erforated Vplate j avoids stopping the machine, as mustfbe the E, rigidly supported in one end ot' the case, case where the adjustment is made at the opthe case provided with a hopper near the op- `posite end.` As the feed-screw or follower posite end, a feedvscrew arranged lougitudi- 12S runs in substantially close contact wit-h the nally within the said case and carrying one".

6o inner surface of the case or the ribs therein, or more radial cutters at its end next said the screw is afforded a substantial bearing perforated plate, the said cutters adapted to A* .throughout its entire length, so that no suprevolve in a plane parallel with and adjacent port or bearing is necessary at the discharge to the inner su rface vof said perforated plate, :x36

end. the shaft of the said feed-screw extending.,

While I prefer to employ the bushing L through a bearing at the end ofthe caseoppobetween the nut and the feed -screw, it may sitethe perforated plate, and there provided t lueoniitted and the shaft constructed with a with means for its rotation, a buShDgarQund j' said shaft and interlocked with the bearing, to prevent the rotation of the bushing with the shaft, and yet leave the bushing free for longitudinal movement, the said bushing being adapted to bear against a shoulder on said feed-screw, and a nut on said bearing adapted to bear said bushing against said shoulder on the feedscre\v,to adj ustably support said feedscreW and cutters against longitudinal movement from said perforated plate, substantially as described.

3. The combination of the cylindrical case,

longitudinally divided, a perforated plate, E,

rigidly supported in one end of the case, the' case provided with a hopper near the opposite end, a feed-screw arranged longitudinally wilhiu said case and carrying one or more radial cutters at its end next said perforated v plata-the said cutters adapted to revolve in a plane parallel with and adjacent to the inner surface of said perforated plate, the shaft of the said feed-screw extending through a bearing at the end of the case opposite the perforated plate, and there provided with means for its rotation, and an adjusting device, substantially such as described, at the bearing in the end of the case opposite said perforated plate,

"a'plane parallel with and adjacent to the in- 4o Vner surface of said perforated plate, the inner surface of the two parts of the said case provided With spiral ribs around its inner surface, the inclination of which is greater than that of the spiral rib which forms the feed- 45 screw, the internal diameter of said ribs corresponding to the external diameterof the spiral rib on the feed-screw, substantially as described.

JOHN H. SHAW.

Witnesses:

WM. S. COOKE, O. SCHLIEPER. 

